# NTSB investigations: Hirth F-23

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB CEN21LA288](https://openairdocs.org/ntsb/CEN21LA288.md): Vining SD1 Minisport · Butler, OH · Accident · No injuries · Class 3 · Limited · Final report · Jun 23, 2021 · N72DX · Substantial damage
  > The pilot’s failure to maintain adequate airspeed following a partial loss of engine power, which resulted in an aerodynamic stall and impact with terrain. The reason for the partial loss of engine power could not be determined based on available information.
- [NTSB WPR13FA399](https://openairdocs.org/ntsb/WPR13FA399.md): Tyler Ives SD-1 TG · Spanish Fork, UT · Accident · 1 fatal · Field investigation · Final report · Sep 6, 2013 · N123SD · Destroyed
  > The pilot’s failure to maintain airplane control while performing prohibited aerobatic maneuvers and the deployment and separation of the ballistic parachute system from the airframe for reasons that could not be determined due to the severity of impact…

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('33721'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=33721

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.